Eggplant blight disease mainly affects fruits, leaves, stems, flowers and other parts. Near-ground fruit first onset, the affected fruit is initially water-stained round spots, slightly sunken, the flesh becomes dark brown and rot, easy to fall off; when the humidity is high, the surface of the diseased part grows dense white cotton-like hyphae, and expands rapidly. The disease fruit is quickly corrupted.
The stem was stained at the beginning of the disease, and then darkened green or purple-brown. The diseased part collapsed, and the upper branches and leaves sagged; when the humidity was high, the white mold was sparse. The damaged leaves are irregular or nearly round water-stained pale brown to brown lesions, with obvious wheel pattern. When wet, the lesions are sparsely white, and the seedlings are easily damaged.
Prevention
(1) Select disease-resistant varieties, such as “General Choice No.1†and “Xingcheng Purple Round Eggplantâ€.
(2) Carry out the rotation, select the field with moderate and moderate irrigation and convenient irrigation and drainage, deep excavation in autumn and winter, apply high-quality and fully decomposed organic fertilizer, and adopt high ridge or semi-high ridge cultivation.
(3) Timely cultivating, pruning, removing diseased fruits and diseased leaves, covering with plastic film, increasing phosphorus and potassium fertilizers.
(4) Disinfect the soil with carbendazim in the early stage of planting.
(5) Chemical control, in the early stage of the disease, 72.2% Plex water 700-800 times liquid, or DuPont anti-fast net 1000 times liquid spray control.
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